html[data-theme='light'] {
  --background-color: #fff;
  --text-color: #000;
}

html[data-theme='dark'] {
  --background-color: #000;
  --text-color: #fff;
}
.x-box {
  width: 100%;
  height: 100%;
  overflow: hidden;
  box-sizing: border-box;
}
.x-box-flex {
  display: flex;
  height: 100%;
  width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}
